I am hoping to build my own road bike, but I am not sure what size frame I need or what type. I am about 5' 11'' and I need a bike that I can use for quick trips or for long rides.
You should go to a bike shop and try them out to find your size. As girls have longer legs than guys, you will need a different size than a guy who is 5'11". Straddle a bike and the frame should be about two inches lower than your crotch, probably a 19" or taller. Keep trying different sizes till you find one that is about that size. Then take it on a test ride around the parking lot. They will let you do that.
